12030023022221 has 64 divisors (see below), whose sum is σ = 13220002234368. Its totient is φ = 10916606308608.

The previous prime is 12030023022217. The next prime is 12030023022229. The reversal of 12030023022221 is 12222032003021.

It is a happy number.

It is not a de Polignac number, because 12030023022221 - 2² = 12030023022217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12030023022193 and 12030023022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030023022229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2433746876 + ... + 2433751818.

It is an arithmetic number, because the mean of its divisors is an integer number (206562534912).

Almost surely, 2^{12030023022221} is an apocalyptic number.

It is an amenable number.

12030023022221 is a deficient number, since it is larger than the sum of its proper divisors (1189979212147).

12030023022221 is a wasteful number, since it uses less digits than its factorization.

12030023022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12030023022221 its reverse (12222032003021), we get a palindrome (24252055025242).

The spelling of 12030023022221 in words is "twelve trillion, thirty billion, twenty-three million, twenty-two thousand, two hundred twenty-one".